Redirection

Classes declared by a theme/plugin should start with the theme/plugin prefix. Found: "Agent_Match".

Use of a direct database call is discouraged.

Direct database call without caching detected. Consider using wp_cache_get() / wp_cache_set() or wp_cache_delete().

PHP file should prevent direct access. Add a check like: if ( ! defined( 'ABSPATH' ) ) exit;

$_COOKIE[$cookie] not unslashed before sanitization. Use wp_unslash() or similar

Attempting a database schema change is discouraged.

Functions declared in the global namespace by a theme/plugin should start with the theme/plugin prefix. Found: "red_deprecated_php".

Detected usage of a non-sanitized input variable: $_REQUEST['_wpnonce']

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "$this->filter".

Unescaped parameter $table used in $wpdb->get_var()

Hook names invoked by a theme/plugin should start with the theme/plugin prefix. Found: "red_default_options".

File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fopen().

Processing form data without nonce verification.

Traits declared by a theme/plugin should start with the theme/plugin prefix. Found: "FromNotFrom_Match".

All output should be run through an escaping function (see the Security sections in the WordPress Developer Handbooks), found '$exporter'.

File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fclose().

load_plugin_textdomain() has been discouraged since WordPress version 4.6. When your plugin is hosted on WordPress.org, you no longer need to manually include this function call for translations under your plugin slug. WordPress will automatically load the translations for you as needed.

Use placeholders and $wpdb->prepare(); found $where

Detected usage of a possibly undefined superglobal array index: $_SERVER['QUERY_STRING']. Check that the array index exists before using it.

File operations should use WP_Filesystem methods instead of direct PHP filesystem calls. Found: fwrite().

wp_reset_query() is discouraged. Use wp_reset_postdata() instead.

Mismatched text domain. Expected 'redirection' but got 'default'.

Missing "License" in Plugin Header. Please update your Plugin Header with a valid GPLv2 (or later) compatible license.